Many kinds of factors will affect the time of IVF transfer, the specific situation will vary from person to person, the third generation IVF can be transferred in about 3 months. Third generation IVF is known as pre-embryo transfer genetic diagnosis, which is a more advanced IVF technology. Before embryo transfer, the genetic material of the embryo needs to be analyzed to determine whether there are any abnormalities, and screening healthy embryos for transfer can prevent genetic diseases. The third generation of IVF is frozen embryo transfer, if there is a good quality embryo on day 3 after egg retrieval and it can continue to be cultured down the line to form a blastocyst, the blastocyst is frozen. The blastocysts will be thawed again in the next menstrual cycle, and the cells of the blastocysts will be tested for genetic material, and if they are normal, the blastocysts will be ready for transfer, which will take about 3 months.